:root {
    color-scheme: light dark;
    --bg: #ffffff;
    --panel: #f6f8fb;
    --line: #dde3ec;
    --text: #131a26;
    --muted: #586478;
    --accent: #1a5fd0;
    --accent-bg: #e8f0fd;
    --ok: #0b7a4b;
    --ok-bg: #e3f5ec;
    --warn: #8a5300;
    --warn-bg: #fdf1dc;
    --err: #a3261f;
    --err-bg: #fdeceb;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b0f19;
        --panel: #131a2a;
        --line: #273047;
        --text: #f1f5fb;
        --muted: #9aa7bd;
        --accent: #7fb0ff;
        --accent-bg: #16294d;
        --ok: #5fd6a2;
        --ok-bg: #10322a;
        --warn: #f2c071;
        --warn-bg: #3a2c12;
        --err: #ff9d96;
        --err-bg: #3d1a18;
    }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font: 0.9em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow-wrap: anywhere; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }
ul { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.draft { margin: 0; padding: 6px 20px; text-align: center; font-size: 0.85rem; font-weight: 600; color: var(--warn); background: var(--warn-bg); }
header { border-bottom: 1px solid var(--line); }
.bar, .hero, main, .block, footer, body > .notice { max-width: 1280px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }
.bar { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { font-weight: 700; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); }

.hero { padding-top: 32px; padding-bottom: 4px; }
.hero h1 { font-size: 1.9rem; letter-spacing: -0.01em; }
.hero p { max-width: 760px; color: var(--muted); margin: 10px 0 0; }

.notice { margin: 12px 0; padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); font-size: 0.92rem; }
body > .notice { margin-top: 20px; margin-bottom: 20px; }
.notice.error { border-color: var(--err); background: var(--err-bg); color: var(--err); }
.notice a { color: inherit; text-decoration: underline; }

main { padding-top: 4px; padding-bottom: 32px; }
.part { padding-top: 24px; scroll-margin-top: 8px; min-width: 0; }
.part h2 { font-size: 1.25rem; }
.part h3 { font-size: 1.02rem; }
#samples > h3 { margin-top: 12px; }
#demos { padding-top: 16px; }
.lead { color: var(--muted); font-size: 0.9rem; margin: 6px 0 12px; max-width: 760px; }
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 24px; align-items: start; }

.rows { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; align-items: start; }
.rows.two { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 12px; }
.rows.three { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 12px; }
.row, .pick { border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; background: var(--bg); min-width: 0; }
.rows.two .row, .rows.three .row { height: 100%; }
.pick { background: var(--panel); font-size: 0.92rem; overflow-wrap: anywhere; }
.pick p { margin: 0; }
.pick code { font-size: 0.8rem; color: var(--accent); }
.pick .meta { margin-top: 8px; }
.more { margin-top: 8px; }
.more summary { cursor: pointer; color: var(--accent); font-size: 0.9rem; padding: 4px 0 8px; }

.head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.name { font-weight: 650; font-size: 1rem; overflow-wrap: anywhere; }
h4.name { font-size: 0.95rem; }
.meta { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; margin-top: 6px; color: var(--muted); font-size: 0.85rem; overflow-wrap: anywhere; }
.tag { border: 1px solid var(--line); border-radius: 6px; padding: 0 7px; font-size: 0.8rem; color: var(--text); background: var(--panel); white-space: nowrap; }
.tag.task { color: var(--accent); background: var(--accent-bg); border-color: transparent; }
.tag.gated { color: var(--warn); background: var(--warn-bg); border-color: transparent; }
.tag.sample, .tag.pick { color: var(--ok); background: var(--ok-bg); border-color: transparent; }
.tag.sample { white-space: normal; overflow-wrap: anywhere; }
.what { margin-top: 4px; font-size: 0.9rem; }
.facts { margin-top: 6px; color: var(--muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

.block { padding-top: 22px; padding-bottom: 22px; border-top: 1px solid var(--line); }
.block h2 { font-size: 1.15rem; }
.block p { max-width: 820px; color: var(--muted); margin: 10px 0 0; }
.block summary { cursor: pointer; }
.block summary h2 { display: inline; }
footer { display: flex; flex-wrap: wrap; gap: 18px; padding-top: 18px; padding-bottom: 28px; border-top: 1px solid var(--line); font-size: 0.9rem; }
footer a { color: var(--muted); }

/* Between a phone and a wide window the picks move under the two model lists. */
@media (max-width: 1100px) {
    .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    #picks { grid-column: 1 / -1; }
    .rows.picks { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 12px; }
}
@media (max-width: 820px) {
    .cols, .rows.picks, .rows.two, .rows.three { grid-template-columns: minmax(0, 1fr); }
    .hero { padding-top: 24px; }
    .hero h1 { font-size: 1.5rem; }
}